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Finding the Fourth Proportional to 304,416.70, 456,628.12 and 135,945.56

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Solution

The fourth proportional to 304,416.70, 456,628.12 and 135,945.56 is: 203,919.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,416.70 : 456,628.12 = 135,945.56 : x
  2. Step 2: Convert to fraction form
    304,416.70/456,628.12 = 135,945.56/x
  3. Step 3: Cross multiply
    304,416.70x = 456,628.12 × 135,945.56
  4. Step 4: Simplify right side
    304,416.70x = 62,076,565,485.15
  5. Step 5: Solve for x
    x = 62,076,565,485.15/304,416.70
  6. Step 6: Final answer
    x = 203,919.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.